Improvement in lamps



@eine tetes` @anni ffice.

LEWIS LSAGENDQRPH, oFBo'STON, MASSACHUSETTS, ASSIeNoR fro ninvSELF AND SAMUEL C. MOORE, -oF SAME PLAGE.-

Letters .Patent No-l 75,467,l dated Merch 10, 1858;

IMPROVEMENT IN LAMPS.

TO ALLUWHOM IT MAY CONCERN: K Be it known that I, LEWIS L. SAGENDORPH', of the city of. Boston, in the State ot"Mussacliusetts, have invented a new und useful Improvement in Burners for Kerosene-Lsmpsg and Ido hereby declare the following to' be :L full und correct description of the seme, reference being had to the accompanying drawings, in which- Figure' l is a perspective view of my improved burner with. chimney attached. y Figure 2 is s. vertical central section of the sauie, and

Figure 3 s. plnnpor top view, Thesame letter marks the same part wherever it occurs. p The nature of this invention consists in the peculiar mode `of supporting the blaze-csp, and its arrangement in relation to a solid base-plate of peculiar construction, so that the air admitted tothe flume must pass through an annular opening immediately around the blaze-cap, the elect being to secure a more lperfect combustion, together with great steadiness of flame.

In the accompanying drawing, A marks theiperforated cup, B the solid base-plate, which has no perforations, but rises laround the blze-enp in an upright rim, B. Cis the binne-cap, which is n plain hemisphere, having the usuel opening, c, for the flame. Three pins, a a a, project from its sides, und are received by three slits, 6, cut in the upper edge of the rim B. Inthis way the'cap is securely held while in place; and is readily removable nt pleasure. Between' the 'cap C and the rim B is on annuler space, d, through which all the six` admitted to the flame must pass, except that which passes through the slot c. The wick-tube t is of the usual construction. The,- chimney Eis of the form represented, und rests upon the outer edge o? the base-plate B. It is supported within by the bracesD, attached, in any suitable manner, to the base-plate.

By this construction, the air is 'supplied in an unbroken stream to the flame, let the best position for securing perfect combustion, while the light is rendered very steady by reason of the absence of those disturbing currents which exist in the' chimney, when the base-plate is perforated throughout its whole extent, and which cause the objectionble movement of the blaze called flickering'. .The realdinesswith which the cup can be removed gives leasy access to the top vof' the wick-tube for the purpose of trimming the wick.

'Having thus fully described my invention, what I claim, and desire to secure by Letters Potent, is v AThe blaze-csp C, so arranged with reference to the imperforate base-plete B, as to direct tbcnir to the Home through an annuler'passageA onopening around the blaze-cap, in the manner and for the purpose specified.

. I also claim supporting the bluse-cap by pins resting in'slitsein the upright flange B oi tlzebase-plute, in the manner described. A

I -The nbosepccication of mysaie'. invention signed and witnessed at Boston, this -th rlny vof December. AJ). rse?.

LEWIS LL SAGENDORPH '.Witnesses Cess, F. Smssnnnr,. SAMUEL C. Moons.V 

